What type of technical directive is characterized by immediate implementation of changes?

Immediate Action directives are designed to address urgent or critical issues that require prompt attention and resolution. These directives are issued to ensure the safety and operational readiness of equipment and personnel. When a serious problem is identified—such as a defect in an aircraft or a procedure that puts safety at risk—an Immediate Action directive is generated to ensure that all affected parties implement the changes without delay. This type of directive often includes specific instructions to halt operations or modify processes quickly to mitigate risk and maintain safety standards.

Other types of directives, such as formal changes, bulletins, or interim directives, may not necessarily require immediate implementation. While they serve important functions in communicating necessary updates or procedural changes, they typically allow for a longer implementation timeline based on planning and operational considerations. Immediate Action is specifically focused on urgent situations demanding swift corrective action.